moel@1: /*
moel@1:
moel@344: This Source Code Form is subject to the terms of the Mozilla Public
moel@344: License, v. 2.0. If a copy of the MPL was not distributed with this
moel@344: file, You can obtain one at http://mozilla.org/MPL/2.0/.
moel@1:
moel@344: Copyright (C) 2009-2011 Michael Möller <mmoeller@openhardwaremonitor.org>
moel@344:
moel@1: */
moel@1:
moel@196: using System;
moel@201: using System.Collections.Generic;
moel@201: using System.Diagnostics;
moel@196: using System.Globalization;
moel@268: using System.IO;
moel@201: using System.Runtime.InteropServices;
moel@196: using System.Text;
moel@197: using System.Threading;
moel@196:
moel@1: namespace OpenHardwareMonitor.Hardware.CPU {
moel@165:
moel@196: internal sealed class AMD10CPU : AMDCPU {
moel@1:
moel@195: private readonly Sensor coreTemperature;
moel@197: private readonly Sensor[] coreClocks;
moel@197: private readonly Sensor busClock;
moel@201:
moel@201: private const uint PERF_CTL_0 = 0xC0010000;
moel@201: private const uint PERF_CTR_0 = 0xC0010004;
moel@279: private const uint HWCR = 0xC0010015;
moel@201: private const uint P_STATE_0 = 0xC0010064;
moel@197: private const uint COFVID_STATUS = 0xC0010071;
moel@1:
moel@196: private const byte MISCELLANEOUS_CONTROL_FUNCTION = 3;
moel@251: private const ushort FAMILY_10H_MISCELLANEOUS_CONTROL_DEVICE_ID = 0x1203;
moel@271: private const ushort FAMILY_11H_MISCELLANEOUS_CONTROL_DEVICE_ID = 0x1303;
moel@301: private const ushort FAMILY_12H_MISCELLANEOUS_CONTROL_DEVICE_ID = 0x1703;
moel@301: private const ushort FAMILY_14H_MISCELLANEOUS_CONTROL_DEVICE_ID = 0x1703;
moel@301: private const ushort FAMILY_15H_MISCELLANEOUS_CONTROL_DEVICE_ID = 0x1603;
moel@197: private const uint REPORTED_TEMPERATURE_CONTROL_REGISTER = 0xA4;
moel@273: private const uint CLOCK_POWER_TIMING_CONTROL_0_REGISTER = 0xD4;
moel@201:
moel@196: private readonly uint miscellaneousControlAddress;
moel@251: private readonly ushort miscellaneousControlDeviceId;
moel@1:
moel@268: private readonly FileStream temperatureStream;
moel@266:
moel@279: private readonly double timeStampCounterMultiplier;
moel@279: private readonly bool corePerformanceBoostSupport;
moel@201:
moel@191: public AMD10CPU(int processorIndex, CPUID[][] cpuid, ISettings settings)
moel@191: : base(processorIndex, cpuid, settings)
moel@196: {
moel@301: // AMD family 1Xh processors support only one temperature sensor
moel@22: coreTemperature = new Sensor(
moel@134: "Core" + (coreCount > 1 ? " #1 - #" + coreCount : ""), 0,
moel@195: SensorType.Temperature, this, new [] {
moel@122: new ParameterDescription("Offset [°C]", "Temperature offset.", 0)
moel@165: }, settings);
moel@1:
moel@251: switch (family) {
moel@251: case 0x10: miscellaneousControlDeviceId =
moel@251: FAMILY_10H_MISCELLANEOUS_CONTROL_DEVICE_ID; break;
moel@251: case 0x11: miscellaneousControlDeviceId =
moel@251: FAMILY_11H_MISCELLANEOUS_CONTROL_DEVICE_ID; break;
moel@301: case 0x12: miscellaneousControlDeviceId =
moel@301: FAMILY_12H_MISCELLANEOUS_CONTROL_DEVICE_ID; break;
moel@271: case 0x14: miscellaneousControlDeviceId =
moel@273: FAMILY_14H_MISCELLANEOUS_CONTROL_DEVICE_ID; break;
moel@301: case 0x15: miscellaneousControlDeviceId =
moel@301: FAMILY_15H_MISCELLANEOUS_CONTROL_DEVICE_ID; break;
moel@251: default: miscellaneousControlDeviceId = 0; break;
moel@251: }
moel@251:
moel@196: // get the pci address for the Miscellaneous Control registers
moel@196: miscellaneousControlAddress = GetPciAddress(
moel@251: MISCELLANEOUS_CONTROL_FUNCTION, miscellaneousControlDeviceId);
moel@42:
moel@197: busClock = new Sensor("Bus Speed", 0, SensorType.Clock, this, settings);
moel@197: coreClocks = new Sensor[coreCount];
moel@197: for (int i = 0; i < coreClocks.Length; i++) {
moel@197: coreClocks[i] = new Sensor(CoreString(i), i + 1, SensorType.Clock,
moel@197: this, settings);
moel@201: if (HasTimeStampCounter)
moel@197: ActivateSensor(coreClocks[i]);
moel@197: }
moel@197:
moel@279: corePerformanceBoostSupport = (cpuid[0][0].ExtData[7, 3] & (1 << 9)) > 0;
moel@279:
moel@238: // set affinity to the first thread for all frequency estimations
moel@238: ulong mask = ThreadAffinity.Set(1UL << cpuid[0][0].Thread);
moel@201:
moel@279: // disable core performance boost
moel@279: uint hwcrEax, hwcrEdx;
moel@279: Ring0.Rdmsr(HWCR, out hwcrEax, out hwcrEdx);
moel@279: if (corePerformanceBoostSupport)
moel@279: Ring0.Wrmsr(HWCR, hwcrEax | (1 << 25), hwcrEdx);
moel@279:
moel@201: uint ctlEax, ctlEdx;
moel@236: Ring0.Rdmsr(PERF_CTL_0, out ctlEax, out ctlEdx);
moel@201: uint ctrEax, ctrEdx;
moel@236: Ring0.Rdmsr(PERF_CTR_0, out ctrEax, out ctrEdx);
moel@201:
moel@201: timeStampCounterMultiplier = estimateTimeStampCounterMultiplier();
moel@201:
moel@201: // restore the performance counter registers
moel@236: Ring0.Wrmsr(PERF_CTL_0, ctlEax, ctlEdx);
moel@236: Ring0.Wrmsr(PERF_CTR_0, ctrEax, ctrEdx);
moel@201:
moel@279: // restore core performance boost
moel@279: if (corePerformanceBoostSupport)
moel@279: Ring0.Wrmsr(HWCR, hwcrEax, hwcrEdx);
moel@279:
moel@201: // restore the thread affinity.
moel@238: ThreadAffinity.Set(mask);
moel@201:
moel@266: // the file reader for lm-sensors support on Linux
moel@268: temperatureStream = null;
moel@266: int p = (int)Environment.OSVersion.Platform;
moel@266: if ((p == 4) || (p == 128)) {
moel@266: string[] devicePaths = Directory.GetDirectories("/sys/class/hwmon/");
moel@266: foreach (string path in devicePaths) {
moel@266: string name = null;
moel@266: try {
moel@266: using (StreamReader reader = new StreamReader(path + "/device/name"))
moel@266: name = reader.ReadLine();
moel@266: } catch (IOException) { }
moel@266: switch (name) {
moel@266: case "k10temp":
moel@268: temperatureStream = new FileStream(path + "/device/temp1_input",
moel@268: FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
moel@266: break;
moel@266: }
moel@266: }
moel@266: }
moel@266:
moel@1: Update();
moel@1: }
moel@1:
moel@201: private double estimateTimeStampCounterMultiplier() {
moel@201: // preload the function
moel@201: estimateTimeStampCounterMultiplier(0);
moel@201: estimateTimeStampCounterMultiplier(0);
moel@201:
moel@201: // estimate the multiplier
moel@201: List<double> estimate = new List<double>(3);
moel@201: for (int i = 0; i < 3; i++)
moel@201: estimate.Add(estimateTimeStampCounterMultiplier(0.025));
moel@201: estimate.Sort();
moel@201: return estimate[1];
moel@201: }
moel@201:
moel@201: private double estimateTimeStampCounterMultiplier(double timeWindow) {
moel@201: uint eax, edx;
moel@201:
moel@201: // select event "076h CPU Clocks not Halted" and enable the counter
moel@236: Ring0.Wrmsr(PERF_CTL_0,
moel@201: (1 << 22) | // enable performance counter
moel@201: (1 << 17) | // count events in user mode
moel@201: (1 << 16) | // count events in operating-system mode
moel@201: 0x76, 0x00000000);
moel@201:
moel@201: // set the counter to 0
moel@236: Ring0.Wrmsr(PERF_CTR_0, 0, 0);
moel@201:
moel@201: long ticks = (long)(timeWindow * Stopwatch.Frequency);
moel@273: uint lsbBegin, msbBegin, lsbEnd, msbEnd;
moel@201:
moel@201: long timeBegin = Stopwatch.GetTimestamp() +
moel@201: (long)Math.Ceiling(0.001 * ticks);
moel@201: long timeEnd = timeBegin + ticks;
moel@201: while (Stopwatch.GetTimestamp() < timeBegin) { }
moel@236: Ring0.Rdmsr(PERF_CTR_0, out lsbBegin, out msbBegin);
moel@279:
moel@201: while (Stopwatch.GetTimestamp() < timeEnd) { }
moel@236: Ring0.Rdmsr(PERF_CTR_0, out lsbEnd, out msbEnd);
moel@279: Ring0.Rdmsr(COFVID_STATUS, out eax, out edx);
moel@301: double coreMultiplier = GetCoreMultiplier(eax);
moel@201:
moel@201: ulong countBegin = ((ulong)msbBegin << 32) | lsbBegin;
moel@201: ulong countEnd = ((ulong)msbEnd << 32) | lsbEnd;
moel@201:
moel@201: double coreFrequency = 1e-6 *
moel@201: (((double)(countEnd - countBegin)) * Stopwatch.Frequency) /
moel@201: (timeEnd - timeBegin);
moel@201:
moel@201: double busFrequency = coreFrequency / coreMultiplier;
moel@279:
moel@273: return 0.25 * Math.Round(4 * TimeStampCounterFrequency / busFrequency);
moel@201: }
moel@201:
moel@191: protected override uint[] GetMSRs() {
moel@279: return new uint[] { PERF_CTL_0, PERF_CTR_0, HWCR, P_STATE_0,
moel@279: COFVID_STATUS };
moel@1: }
moel@1:
moel@196: public override string GetReport() {
moel@196: StringBuilder r = new StringBuilder();
moel@196: r.Append(base.GetReport());
moel@196:
moel@197: r.Append("Miscellaneous Control Address: 0x");
moel@196: r.AppendLine((miscellaneousControlAddress).ToString("X",
moel@196: CultureInfo.InvariantCulture));
moel@201: r.Append("Time Stamp Counter Multiplier: ");
moel@201: r.AppendLine(timeStampCounterMultiplier.ToString(
moel@201: CultureInfo.InvariantCulture));
moel@273: if (family == 0x14) {
moel@273: uint value = 0;
moel@273: Ring0.ReadPciConfig(miscellaneousControlAddress,
moel@273: CLOCK_POWER_TIMING_CONTROL_0_REGISTER, out value);
moel@273: r.Append("PCI Register D18F3xD4: ");
moel@273: r.AppendLine(value.ToString("X8", CultureInfo.InvariantCulture));
moel@273: }
moel@201: r.AppendLine();
moel@201:
moel@196: return r.ToString();
moel@196: }
moel@196:
moel@301: private double GetCoreMultiplier(uint cofvidEax) {
moel@301: switch (family) {
moel@301: case 0x10:
moel@329: case 0x11:
moel@329: case 0x15: {
moel@329: // 8:6 CpuDid: current core divisor ID
moel@329: // 5:0 CpuFid: current core frequency ID
moel@329: uint cpuDid = (cofvidEax >> 6) & 7;
moel@329: uint cpuFid = cofvidEax & 0x1F;
moel@329: return 0.5 * (cpuFid + 0x10) / (1 << (int)cpuDid);
moel@301: }
moel@329: case 0x12: {
moel@329: // 8:4 CpuFid: current CPU core frequency ID
moel@329: // 3:0 CpuDid: current CPU core divisor ID
moel@329: uint cpuFid = (cofvidEax >> 4) & 0x1F;
moel@329: uint cpuDid = cofvidEax & 0xF;
moel@329: double divisor;
moel@329: switch (cpuDid) {
moel@329: case 0: divisor = 1; break;
moel@329: case 1: divisor = 1.5; break;
moel@329: case 2: divisor = 2; break;
moel@329: case 3: divisor = 3; break;
moel@329: case 4: divisor = 4; break;
moel@329: case 5: divisor = 6; break;
moel@329: case 6: divisor = 8; break;
moel@329: case 7: divisor = 12; break;
moel@329: case 8: divisor = 16; break;
moel@329: default: divisor = 1; break;
moel@329: }
moel@329: return (cpuFid + 0x10) / divisor;
moel@329: }
moel@329: case 0x14: {
moel@329: // 8:4: current CPU core divisor ID most significant digit
moel@329: // 3:0: current CPU core divisor ID least significant digit
moel@329: uint divisorIdMSD = (cofvidEax >> 4) & 0x1F;
moel@329: uint divisorIdLSD = cofvidEax & 0xF;
moel@329: uint value = 0;
moel@329: Ring0.ReadPciConfig(miscellaneousControlAddress,
moel@329: CLOCK_POWER_TIMING_CONTROL_0_REGISTER, out value);
moel@329: uint frequencyId = value & 0x1F;
moel@329: return (frequencyId + 0x10) /
moel@329: (divisorIdMSD + (divisorIdLSD * 0.25) + 1);
moel@329: }
moel@301: default:
moel@301: return 1;
moel@301: }
moel@273: }
moel@273:
moel@268: private string ReadFirstLine(Stream stream) {
moel@268: StringBuilder sb = new StringBuilder();
moel@268: try {
moel@268: stream.Seek(0, SeekOrigin.Begin);
moel@268: int b = stream.ReadByte();
moel@268: while (b != -1 && b != 10) {
moel@268: sb.Append((char)b);
moel@268: b = stream.ReadByte();
moel@268: }
moel@268: } catch { }
moel@268: return sb.ToString();
moel@268: }
moel@268:
moel@110: public override void Update() {
moel@191: base.Update();
moel@191:
moel@268: if (temperatureStream == null) {
moel@266: if (miscellaneousControlAddress != Ring0.InvalidPciAddress) {
moel@266: uint value;
moel@266: if (Ring0.ReadPciConfig(miscellaneousControlAddress,
moel@266: REPORTED_TEMPERATURE_CONTROL_REGISTER, out value)) {
moel@329: if (family == 0x15 && (value & 0x30000) == 0x30000) {
moel@329: coreTemperature.Value = ((value >> 21) & 0x7FC) / 8.0f +
moel@329: coreTemperature.Parameters[0].Value - 49;
moel@329: } else {
moel@329: coreTemperature.Value = ((value >> 21) & 0x7FF) / 8.0f +
moel@329: coreTemperature.Parameters[0].Value;
moel@329: }
moel@266: ActivateSensor(coreTemperature);
moel@266: } else {
moel@266: DeactivateSensor(coreTemperature);
moel@266: }
moel@266: }
moel@266: } else {
moel@268: string s = ReadFirstLine(temperatureStream);
moel@266: try {
moel@266: coreTemperature.Value = 0.001f *
moel@266: long.Parse(s, CultureInfo.InvariantCulture);
moel@42: ActivateSensor(coreTemperature);
moel@266: } catch {
moel@42: DeactivateSensor(coreTemperature);
moel@266: }
moel@24: }
moel@197:
moel@201: if (HasTimeStampCounter) {
moel@197: double newBusClock = 0;
moel@197:
moel@197: for (int i = 0; i < coreClocks.Length; i++) {
moel@197: Thread.Sleep(1);
moel@197:
moel@197: uint curEax, curEdx;
moel@236: if (Ring0.RdmsrTx(COFVID_STATUS, out curEax, out curEdx,
moel@238: 1UL << cpuid[i][0].Thread))
moel@197: {
moel@273: double multiplier;
moel@301: multiplier = GetCoreMultiplier(curEax);
moel@197:
moel@201: coreClocks[i].Value =
moel@201: (float)(multiplier * TimeStampCounterFrequency /
moel@201: timeStampCounterMultiplier);
moel@201: newBusClock =
moel@201: (float)(TimeStampCounterFrequency / timeStampCounterMultiplier);
moel@197: } else {
moel@201: coreClocks[i].Value = (float)TimeStampCounterFrequency;
moel@197: }
moel@197: }
moel@197:
moel@197: if (newBusClock > 0) {
moel@197: this.busClock.Value = (float)newBusClock;
moel@197: ActivateSensor(this.busClock);
moel@197: }
moel@197: }
moel@201: }
moel@266:
moel@298: public override void Close() {
moel@268: if (temperatureStream != null) {
moel@268: temperatureStream.Close();
moel@266: }
moel@298: base.Close();
moel@266: }
moel@1: }
moel@1: }